                        <!-- DOC: Apply "dropdown-dark" class after below "dropdown-extended" to change the dropdown styte -->
                        <li class="dropdown dropdown-extended dropdown-notification" id="header_notification_bar">
                            <a href="javascript:;" class="dropdown-toggle" data-toggle="dropdown" data-hover="dropdown" data-close-others="true">
                                <i class="icon-bell"></i>
                                <span class="badge badge-default"> 7 </span>
                            </a>
                            <ul class="dropdown-menu">
                                <li class="external">
                                    <h3>
                                        <span class="bold">12 条</span> 通知</h3>
                                    <a href="page_user_profile_1.html">全部</a>
                                </li>
                                <li>
                                    <ul class="dropdown-menu-list scroller" style="height: 250px;" data-handle-color="#637283">
                                        <li>
                                            <a href="javascript:;">
                                                <span class="time">just now</span>
                                                <span class="details">
                                                    <span class="label label-sm label-icon label-success">
                                                        <i class="fa fa-plus"></i>
                                                    </span> New user registered. </span>
                                            </a>
                                        </li>
                                        <li>
                                            <a href="javascript:;">
                                                <span class="time">3 mins</span>
                                                <span class="details">
                                                    <span class="label label-sm label-icon label-danger">
                                                        <i class="fa fa-bolt"></i>
                                                    </span> Server #12 overloaded. </span>
                                            </a>
                                        </li>
                                        <li>
                                            <a href="javascript:;">
                                                <span class="time">10 mins</span>
                                                <span class="details">
                                                    <span class="label label-sm label-icon label-warning">
                                                        <i class="fa fa-bell-o"></i>
                                                    </span> Server #2 not responding. </span>
                                            </a>
                                        </li>
                                        <li>
                                            <a href="javascript:;">
                                                <span class="time">14 hrs</span>
                                                <span class="details">
                                                    <span class="label label-sm label-icon label-info">
                                                        <i class="fa fa-bullhorn"></i>
                                                    </span> Application error. </span>
                                            </a>
                                        </li>
                                        <li>
                                            <a href="javascript:;">
                                                <span class="time">2 days</span>
                                                <span class="details">
                                                    <span class="label label-sm label-icon label-danger">
                                                        <i class="fa fa-bolt"></i>
                                                    </span> Database overloaded 68%. </span>
                                            </a>
                                        </li>
                                        <li>
                                            <a href="javascript:;">
                                                <span class="time">3 days</span>
                                                <span class="details">
                                                    <span class="label label-sm label-icon label-danger">
                                                        <i class="fa fa-bolt"></i>
                                                    </span> A user IP blocked. </span>
                                            </a>
                                        </li>
                                        <li>
                                            <a href="javascript:;">
                                                <span class="time">4 days</span>
                                                <span class="details">
                                                    <span class="label label-sm label-icon label-warning">
                                                        <i class="fa fa-bell-o"></i>
                                                    </span> Storage Server #4 not responding dfdfdfd. </span>
                                            </a>
                                        </li>
                                        <li>
                                            <a href="javascript:;">
                                                <span class="time">5 days</span>
                                                <span class="details">
                                                    <span class="label label-sm label-icon label-info">
                                                        <i class="fa fa-bullhorn"></i>
                                                    </span> System Error. </span>
                                            </a>
                                        </li>
                                        <li>
                                            <a href="javascript:;">
                                                <span class="time">9 days</span>
                                                <span class="details">
                                                    <span class="label label-sm label-icon label-danger">
                                                        <i class="fa fa-bolt"></i>
                                                    </span> Storage server failed. </span>
                                            </a>
                                        </li>
                                    </ul>
                                </li>
                            </ul>
                        </li>